6748139572 has 12 divisors (see below), whose sum is σ = 12216459780. Its totient is φ = 3257722496.

The previous prime is 6748139479. The next prime is 6748139591. The reversal of 6748139572 is 2759318476.

It can be written as a sum of positive squares in 2 ways, for example, as 4189196176 + 2558943396 = 64724^2 + 50586^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29086693 + ... + 29086924.

It is an arithmetic number, because the mean of its divisors is an integer number (1018038315).

Almost surely, 2^6748139572 is an apocalyptic number.

It is an amenable number.

6748139572 is a deficient number, since it is larger than the sum of its proper divisors (5468320208).

6748139572 is a wasteful number, since it uses less digits than its factorization.

6748139572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58173650 (or 58173648 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 52.

The square root of 6748139572 is about 82147.0606412670. The cubic root of 6748139572 is about 1889.7079298215.

The spelling of 6748139572 in words is "six billion, seven hundred forty-eight million, one hundred thirty-nine thousand, five hundred seventy-two".